Home / 2,489.40-3,733.90-1,876.23

Finding the Fourth Proportional to 2,489.40, 3,733.90 and 1,876.23

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Solution

The fourth proportional to 2,489.40, 3,733.90 and 1,876.23 is: 2,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.40 : 3,733.90 = 1,876.23 : x
  2. Step 2: Convert to fraction form
    2,489.40/3,733.90 = 1,876.23/x
  3. Step 3: Cross multiply
    2,489.40x = 3,733.90 × 1,876.23
  4. Step 4: Simplify right side
    2,489.40x = 7,005,650.51
  5. Step 5: Solve for x
    x = 7,005,650.51/2,489.40
  6. Step 6: Final answer
    x = 2,814.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.